The following function applies a callback to each image in an Imagick object.
<?php
function imagickMap($callback, $im)
{
$im->setFirstIterator();
do
{
$callback($im);
}
while ( $im->nextImage() );
}
?>
E.g. to convert a series of images to grayscale:
<?php
imagickMap(
function($im)
{
$im->setImageType(Imagick::IMGTYPE_GRAYSCALEMATTE);
},
$im
);
?>
Imagick::setFirstIterator
(PECL imagick 2, PECL imagick 3)
Imagick::setFirstIterator — Sets the Imagick iterator to the first image
Descrierea
public Imagick::setFirstIterator
(
) : bool
Sets the Imagick iterator to the first image.
Valorile întoarse
Întoarce true în caz de succes.
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User Contributed Notes 1 note
simonjjarrett at gmail dot com ¶
4 years ago
